<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>自定义组件</title>
    <script src="../../js/vue.js" type="text/javascript"></script>
</head>
<body>
<div id="root">
    <my-button></my-button>
</div>
<div id="root2">
    <my-button></my-button>
</div>
<script>
    window.onload = function () {

        Vue.component('my-button', {
            data() {
                return {
                    count: 1
                }
            },
            template: `
              <button style="background-color: #3a8ee6" @click="count++">count++{{ count }}</button>`,
        });
        let vm = new Vue({
            el: '#root'
        })
        let vm2 = new Vue({
            el: '#root2'
        })
    }
</script>
</body>
</html>